initscripts: fix RO root problem for angstrom

* I suspect it applies to all 2.6 based devices

2 files changed, 201 insertions, 0 deletions

diff --git a/packages/initscripts/initscripts-1.0/angstrom/.mtn2git_empty b/packages/initscripts/initscripts-1.0/angstrom/.mtn2git_empty
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/packages/initscripts/initscripts-1.0/angstrom/.mtn2git_empty
diff --git a/packages/initscripts/initscripts-1.0/angstrom/checkroot.sh b/packages/initscripts/initscripts-1.0/angstrom/checkroot.sh
new file mode 100755
index 0000000000..e5fc6ed8b5
--- /dev/null
+++ b/packages/initscripts/initscripts-1.0/angstrom/checkroot.sh
@@ -0,0 +1,201 @@
+#
+# checkroot.sh	Check to root filesystem.
+#
+# Version:	@(#)checkroot.sh  2.84  25-Jan-2002  miquels@cistron.nl
+#
+
+. /etc/default/rcS
+
+#
+# Set SULOGIN in /etc/default/rcS to yes if you want a sulogin to be spawned
+# from this script *before anything else* with a timeout, like SCO does.
+#
+test "$SULOGIN" = yes && sulogin -t 30 $CONSOLE
+
+#
+# Ensure that bdflush (update) is running before any major I/O is
+# performed (the following fsck is a good example of such activity :).
+#
+test -x /sbin/update && update
+
+#
+# Read /etc/fstab.
+#
+exec 9>&0 </etc/fstab
+rootmode=rw
+rootopts=rw
+test "$ENABLE_ROOTFS_FSCK" = yes && rootcheck="yes" || rootcheck="no"
+swap_on_md=no
+devfs=
+while read fs mnt type opts dump pass junk
+do
+	case "$fs" in
+		""|\#*)
+			continue;
+			;;
+		/dev/md*)
+			# Swap on md device.
+			test "$type" = swap && swap_on_md=yes
+			;;
+		/dev/*)
+			;;
+		*)
+			# Might be a swapfile.
+			test "$type" = swap && swap_on_md=yes
+			;;
+	esac
+	
+	test "$type" = devfs && devfs="$fs"
+
+	# Currently we do not care about the other entries
+	if test "$mnt" = "/"
+	then
+		#echo "[$fs] [$mnt] [$type] [$opts] [$dump] [$pass] [$junk]"
+
+		rootopts="$opts"		
+		roottype="$type"
+
+		#The "spinner" is broken on busybox sh	
+		TERM=dumb
+			
+		test "$pass" = 0 -o "$pass" = "" && rootcheck=no
+		
+		# Enable fsck for ext2 and ext3 rootfs, disable for everything else				
+		case "$type" in
+		ext2|ext3)	rootcheck=yes;;
+		*)		rootcheck=no;;
+		esac
+		
+		if test "$rootcheck" = yes
+		then
+			if ! test -x "/sbin/fsck.${roottype}"
+			then
+				echo -e "\n * * * WARNING: /sbin/fsck.${roottype} is missing! * * *\n"
+				rootcheck=no
+			fi
+		fi
+		
+		case "$opts" in
+			ro|ro,*|*,ro|*,ro,*)
+				rootmode=ro
+				;;
+		esac
+	fi
+done
+exec 0>&9 9>&-
+
+#
+# Activate the swap device(s) in /etc/fstab. This needs to be done
+# before fsck, since fsck can be quite memory-hungry.
+#
+doswap=no
+test -d /proc/1 || mount -n /proc
+case "`uname -r`" in
+	2.[0123].*)
+		if test $swap_on_md = yes && grep -qs resync /proc/mdstat
+		then
+			test "$VERBOSE" != no && echo "Not activating swap - RAID array resyncing"
+		else
+			doswap=yes
+		fi
+		;;
+	*)
+		doswap=yes
+		;;
+esac
+if test $doswap = yes
+then
+	test "$VERBOSE" != no && echo "Activating swap"
+	swapon -a 2> /dev/null
+fi
+
+#
+# Check the root filesystem.
+#
+if test -f /fastboot || test $rootcheck = no
+then
+  test $rootcheck = yes && echo "Fast boot, no filesystem check"
+else
+  #
+  # Ensure that root is quiescent and read-only before fsck'ing.
+  #
+  mount -n -o remount,ro /
+  if test $? = 0
+  then
+    if test -f /forcefsck
+    then
+	force="-f"
+    else
+	force=""
+    fi
+    if test "$FSCKFIX" = yes
+    then
+	fix="-y"
+    else
+	fix="-a"
+    fi
+    spinner="-C"
+    case "$TERM" in
+        dumb|network|unknown|"") spinner="" ;;
+    esac
+    test `uname -m` = s390 && spinner="" # This should go away
+    test "$VERBOSE" != no && echo "Checking root filesystem..."
+    fsck $spinner $force $fix /
+    #
+    # If there was a failure, drop into single-user mode.
+    #
+    # NOTE: "failure" is defined as exiting with a return code of
+    # 2 or larger.  A return code of 1 indicates that filesystem
+    # errors were corrected but that the boot may proceed.
+    #
+    if test "$?" -gt 1
+    then
+      # Surprise! Re-directing from a HERE document (as in
+      # "cat << EOF") won't work, because the root is read-only.
+      echo
+      echo "fsck failed.  Please repair manually and reboot.  Please note"
+      echo "that the root filesystem is currently mounted read-only.  To"
+      echo "remount it read-write:"
+      echo
+      echo "   # mount -n -o remount,rw /"
+      echo
+      echo "CONTROL-D will exit from this shell and REBOOT the system."
+      echo
+      # Start a single user shell on the console
+      /sbin/sulogin $CONSOLE
+      reboot -f
+    fi
+  else
+    echo "*** ERROR!  Cannot fsck root fs because it is not mounted read-only!"
+    echo
+  fi
+fi
+
+#
+#	If the root filesystem was not marked as read-only in /etc/fstab,
+#	remount the rootfs rw but do not try to change mtab because it
+#	is on a ro fs until the remount succeeded. Then clean up old mtabs
+#	and finally write the new mtab.
+#	This part is only needed if the rootfs was mounted ro.
+#
+
+if [ $(grep "/dev/root" /proc/mounts | awk '{print $4}') = rw ]; then
+        exit 0
+fi
+
+
+echo "Remounting root file system..."
+mount -n -o remount,$rootmode /
+if test "$rootmode" = rw
+then
+	if test ! -L /etc/mtab
+	then
+		rm -f /etc/mtab~ /etc/nologin
+		: > /etc/mtab
+	fi
+	mount -f -o remount /
+	mount -f /proc
+	test "$devfs" && grep -q '^devfs /dev' /proc/mounts && mount -f "$devfs"
+fi
+
+: exit 0